1．The research group ________ 15 members has made great achievements in recent years.
A．is made up of B．makes up
C．made up of D．making up of
解析：选C。句意“这个由15人组成的研究小组近几年里取得了很多成就”。made up of过去分词做定语，修饰the research group，与之构成被动关系。
2．(2012•北京海淀调研)—Whose suggestion do you suppose we should take?
—________.
A．That’s it B．Never mind
C．It’s up to you D．You get it
解析：选C。考查交际用语。That’s it“对了”；Never mind“没关系，不必在乎”；It’s up to you“你说了算；由你来决定”；You get it“你答对了”。根据句意可知C项正确。
3．Mr.Smith，as well as his wife and children，________looking forward to Christmas Day.
A．were B．have been
C．has been D．are
解析：选C。句意：史密斯先生和他的妻子、孩子都一直盼望圣诞节到来。as well as连接两个并列主语时，谓语动词的数与as well as前面的主语保持一致。
